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A platform for research: civil engineering, architecture and urbanism
Machine-made sand concrete mix proportion design and preparation method
The invention discloses a mix proportion design and preparation method of machine-made sand concrete, and relates to the technical field of building material preparation, the total amount of a cementing material and a glue ratio are calculated according to a compressive strength linear regression linear equation of different machine-made sand substitution rates; calculating the use amount of coarse and fine aggregates with a set sand ratio; calculating the use amounts of the fly ash, the mineral powder and the cement according to the mixing amounts of the fly ash and the mineral powder to obtain a recommended mix proportion meeting the strength requirement and a recommended mix proportion meeting the durability requirement; calculating the concrete 28d chloride ion diffusion coefficient meeting the engineering durability requirement; performing normalization processing on the 28d chloride ion diffusion coefficient of the concrete; calculating the total amount of the cementing material and the glue ratio in combination with a chloride ion diffusion coefficient equation; and combining the recommended mix proportion meeting the strength requirement and the recommended mix proportion meeting the durability requirement to obtain the optimal recommended mix proportion of the machine-made sand concrete of each strength grade. The optimal machine-made sand concrete mix proportion meeting various performance indexes at the same time can be obtained.
本发明公开了一种机制砂混凝土配合比设计及制备方法，涉及建筑材料制备技术领域，根据不同机制砂取代率的抗压强度线性回归线性方程，计算得到胶凝材料总量和胶水比；计算设定砂率的粗细骨料用量；根据粉煤灰和矿粉的掺量计算出粉煤灰、矿粉以及水泥用量，得到满足强度要求的推荐配合比和满足耐久性要求的推荐配合比；计算满足工程耐久性要求的混凝土28d氯离子扩散系数；将混凝土28d氯离子扩散系数进行归一化处理；并结合氯离子扩散系数方程，计算出胶凝材料总量和胶水比；结合满足强度要求的推荐配合比、满足耐久性要求的推荐配合比，得到各强度等级机制砂混凝土的最优推荐配合比。本发明能够得到同时满足各项性能指标的最佳机制砂混凝土配合比。
Machine-made sand concrete mix proportion design and preparation method
The invention discloses a mix proportion design and preparation method of machine-made sand concrete, and relates to the technical field of building material preparation, the total amount of a cementing material and a glue ratio are calculated according to a compressive strength linear regression linear equation of different machine-made sand substitution rates; calculating the use amount of coarse and fine aggregates with a set sand ratio; calculating the use amounts of the fly ash, the mineral powder and the cement according to the mixing amounts of the fly ash and the mineral powder to obtain a recommended mix proportion meeting the strength requirement and a recommended mix proportion meeting the durability requirement; calculating the concrete 28d chloride ion diffusion coefficient meeting the engineering durability requirement; performing normalization processing on the 28d chloride ion diffusion coefficient of the concrete; calculating the total amount of the cementing material and the glue ratio in combination with a chloride ion diffusion coefficient equation; and combining the recommended mix proportion meeting the strength requirement and the recommended mix proportion meeting the durability requirement to obtain the optimal recommended mix proportion of the machine-made sand concrete of each strength grade. The optimal machine-made sand concrete mix proportion meeting various performance indexes at the same time can be obtained.
本发明公开了一种机制砂混凝土配合比设计及制备方法，涉及建筑材料制备技术领域，根据不同机制砂取代率的抗压强度线性回归线性方程，计算得到胶凝材料总量和胶水比；计算设定砂率的粗细骨料用量；根据粉煤灰和矿粉的掺量计算出粉煤灰、矿粉以及水泥用量，得到满足强度要求的推荐配合比和满足耐久性要求的推荐配合比；计算满足工程耐久性要求的混凝土28d氯离子扩散系数；将混凝土28d氯离子扩散系数进行归一化处理；并结合氯离子扩散系数方程，计算出胶凝材料总量和胶水比；结合满足强度要求的推荐配合比、满足耐久性要求的推荐配合比，得到各强度等级机制砂混凝土的最优推荐配合比。本发明能够得到同时满足各项性能指标的最佳机制砂混凝土配合比。
Machine-made sand concrete mix proportion design and preparation method
一种机制砂混凝土配合比设计及制备方法
ZHANG WENYI (author) / ZHOU JIANGUO (author) / WANG HONGXING (author) / GUO NING (author) / ZHAO QIANQIAO (author) / LI WEICHAO (author) / WANG PENGGANG (author) / SONG XIANBAO (author)
2024-12-13
Patent
Electronic Resource
Chinese
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